This paper explores how the film The Babadook illuminates psychoanalytic understandings of melancholia and mourning. The author attempts to unwind the complicated character of melancholia, using Freud as an initial point of orientation, then relying on a few ideas from Klein and later writers. The paper attempts to refine our understanding of the difference between absence and emptiness, especially the difference between being captured in the nothing or deadness of melancholic emptiness, on the one hand, and being alive enough to suffer the absence of a lost object, which bears a potential for mourning, on the other. The possibility of psychic tension between these states is explored. Some implications of the relationship between absence and emptiness for the mourning process are considered. The author uses the film as a resource throughout.